Oiling system for internal-combustion engines



E. T. GEORGES & J. E. GRAMLICH. OILING SYSTEM FOR INTERNAL COMBUSTIONENGINES. APPLICATION FILED FEB. 9. I914.

1 1 94,6 1 4. Patented Aug. 15, 1916.

2 SHEETS-SHEET I.

WITNESSES:

- 1N VENTORS 2 6 1/ A TTORNEYS E. T. GEORGES & J. E. GRA'MLICH.

OILING SYSTEM FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILED FEB. 9,1914.

l 1 94,6 1 4:. .Patented Aug. 15, 1916.

2 SHEETS-SHEET 2.

' M7 WITNESSES: I IN VENTORS A TTORNE Y5 m: N'anms runs 00.. Pnomumm.wlsnmcmu. n. c.

' time. sins rattan own ng EGBERT T. GEORGES AND JACOB E. GRAMLICH, OESYRACUSE, NEW YORK, ASSIGNORS TO CHASE MOTOR TRUCK (30., OF SYRACUSE,NEW YORK, A CORPORATION OF NEW YORK.

OILING- SYSTEM FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Au 15, 1916.

To all whom it may concern:

Be it known that we, Eennn'r. T. Gnonens and JAcon E. GRAMLICH, citizensof the United States, and residents of Syracuse, in the county ofOnondaga and State of New York, have invented a certain new and usefulOiling System for Internal-Combustion Engines, of which the following isa specification.

This invention relates to base compression, internal combustion enginesand particularly to lubricating means for the crank shaft bearingswhereby the crank shaft bearings are sealed by oil and hence thecompressing and suction actions of the piston do not have any' effectoutside of the crank casing, or in the contiguous casing if the engineis multicylinder, but are confined wholly to the crank casing.

The invention consists in the novel fea tures of constructionhereinafter set forth and claimed.

In describing this invention, reference is had to the accompanyingdrawings, in

' which like characters designate corresponding parts in all the views.

Figure 1 is a vertical longitudinal sectional view of an internalcombustion engine provided with our invention. Fig. 2 is an enlargedvertical cross-sectional view through the crank casing, parts beingremoved.

1 designates the cylinders of a two-cycle, base compression, internalcombustion engine, 2 the pistons movable therein, 3 the bases or crankcasings, 4 the crank shaft journaled in bearings 5 in the crank casings,and 6 the rod connecting each piston 2 and its crank 7.

S are oil ducts leading from the crank casing to the bearings 5, theseducts having upwardly extending portions which open into the crankcasing in position to receive the oil running down the sides of thecrank casing after being splashed thereon by the crank 7 and in positionto be subject to compression and suction actions of the pis ton, so thatthe oil after it reaches the bearings through the ducts 8 forms oilseals which are maintained by the alternate suction and compressioneffect of the piston. As here shown, the ducts open into pockets 9formed in opposite sides of the crank casing 3, these pockets being openat their inner sides and tops so as to receive the oil running down theinner sides of the crank casing and also oil being splashed by thecrank/Z, and as here shown, the front and rear sides 10 of the pocketsare inclined toward the bottom thereof through which the passages 8open, and the outer sides 11 of the pockets incline. inwardly andupwardly and overhang the bottom and the sides 10 and thus any oilsplashed against the upper portions, as 12, and the top of the crankcasing will adhere to and run down the inclined sides into the pocketsinstead ofdripping to the bottom of the crank casing. The bearings 5usually include sleeves or bushings 13 and the ducts 8 communicate withpassages H in the sleeves.

In operation, oil is filled into the lower portion of the crank casingand during the movement of the crank shaft the oil is splashed in thewell known manner, and owing to the pockets 9 the oil is gathered anddirected into the oil ducts 8, the oil being forced through these ductsduring the downward movement of the pistons and slightly withdrawntherefrom during the upward movement of the pistons. Hence, the oil inthe bearings forms seals which prevent the inlet along the crank shaftof air from the outside, or of gas from an adjacent casing during theupward stroke of the piston, and which also prevent the escape of gasalong the shaft during the downward stroke of the piston.

hat we claim is 2- 1. In a base compression, internal combustion engine,a base or crank casing serving as an oil receptacle, and being formedwith bearings, and a crank shaft journaled in the bearings, the crankcasing being also formed with ducts leading to the bearings, the ductsbeing disconnected from the exterior of the casing except through thebearing openings, and each having an up wardly extending portion locatedabovethe bearing and opening into the interior of the crank casing inposition to receive oil running down the sides of the crank casing andto be subject to the compressing and suction actions of the pistonwhereby an oil seal is maintained about the crank shaft, substantiallyas and for the purpose described.

2. In a base compression, internal combustion engine, a base or crankcasing serving as an oil receptacle and formed with bearings for thecrank shaft of the engine, the

casing being formed with internal pockets in opposite sides thereof, thepockets being located above the bearings and open at their tops andinner sides, and oil ducts leading from the pockets to the bearings, andbeing disconnected from the outer air except through the bearingopenings, the pockets being located in position to receive oil runningdown the sides of the crank casing and to be subject to the compressingand suction actions of the piston whereby an oil seal is maintainedabout the crank shaft,

substantially as In testimony whereof, We have hereunto 15 signed ournames in the presence oftwo attesting Witnesses, at Syracuse, in thecounty of Onondaga, in the State of New York, this 4th day of February1914.

EGBERT T. GEORGES. JACOB E. GRAMLICH. lVitnesses:

CHAS. A. DUOIE, CHAS. H. YOUNG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, D. G.

